When the phone updated from flyme 4.5 it becomes un-rooted and suddenly “developer option are not available for this account”.
I don’t really care about root access but I need to enable developer options to enable cloud print and other usefull things.

The cloud print menu cannot be accessed through the Settings nor it can be activated with Google Cloud Print. Seems to be a bug.
I see a low chance that they will fix it as well, because their firmwares are not optimized for Google stuff (no matter if A or G firmware).